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1. Snowmass Cosmic Frontier Report

Author

Chou, Aaron S., Soares-Santos, Marcelle, Tait, Tim M. P., Adhikari, Rana X., Anchordoqui, Luis A., Annis, James, Chang, Clarence L., Cooley, Jodi, Drlica-Wagner, Alex, Fang, Ke, Flaugher, Brenna, Jaeckel, Joerg, Lippincott, W. Hugh, Miranda, Vivian, Newburgh, Laura, Newman, Jeffrey A., Prescod-Weinstein, Chanda, Rybka, Gray, Sathyaprakash, B. S., Schlegel, David J., Slatyer, Deirdre M. Shoemaker Tracy R., Slosar, Anze, Tollefson, Kirsten, Winslow, Lindley, Yu, Hai-Bo, Yu, Tien-Tien, Engel, Kristi, Gardner, Susan, Lewis, Tiffany R., Shakya, Bibhushan, and Tanedo, Phillip

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Phenomenology
Abstract

This report summarizes the current status of Cosmic Frontier physics and the broad and exciting future prospects identified for the Cosmic Frontier as part of the 2021 Snowmass Process., Comment: 55 pages. Contribution to the 2021 Snowmass Summer Study

Published
2022

2. Report of the Topical Group on Particle Dark Matter for Snowmass 2021

Author

Cooley, Jodi, Lin, Tongyan, Lippincott, W. Hugh, Slatyer, Tracy R., Yu, Tien-Tien, Akerib, Daniel S., Aramaki, Tsuguo, Baxter, Daniel, Bringmann, Torsten, Bunker, Ray, Carney, Daniel, Cebrián, Susana, Chen, Thomas Y., Cushman, Priscilla, Dahl, C. E., Essig, Rouven, Fan, Alden, Gaitskell, Richard, Galbiati, Cristano, Gelmini, Graciela B., Giovanetti, Graham K., Giroux, Guillaume, Grandi, Luca, Harding, J. Patrick, Haselschwardt, Scott, Hsu, Lauren, Horiuchi, Shunsaku, Kahn, Yonatan, Kim, Doojin, Kim, Geon-Bo, Kravitz, Scott, Kudryavtsev, V. A., Kurinsky, Noah, Lang, Rafael F., Leane, Rebecca K., Lehmann, Benjamin V., Levy, Cecilia, Li, Shengchao, Loer, Ben, Manalaysay, Aaron, Martoff, C. J, Mohlabeng, Gopolang, Monzani, M. E., Murphy, Alexander St J., Neilson, Russell, Nelson, Harry N., O'Hare, Ciaran A. J., Palladino, K. J., Parikh, Aditya, Park, Jong-Chul, Perez, Kerstin, Profumo, Stefano, Raj, Nirmal, Roach, Brandon M., Saab, Tarek, Sarsa, Maria Luísa, Schnee, Richard, Shaw, Sally, Shin, Seodong, Sinha, Kuver, Stifter, Kelly, Suzuki, Aritoki, Szydagis, M., Tait, Tim M. P., Takhistov, Volodymyr, Tsai, Yu-Dai, Vahsen, S. E., Vitagliano, Edoardo, von Doetinchem, Philip, Wang, Gensheng, Westerdale, Shawn, Williams, David A., Xiang, Xin, and Yang, Liang

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract

This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next decade is to reveal the nature of dark matter (DM). To accomplish this goal, we must delve deep, to cover high priority targets including weakly-interacting massive particles (WIMPs), and search wide, to explore as much motivated DM parameter space as possible. A diverse, continuous portfolio of experiments at large, medium, and small scales that includes both direct and indirect detection techniques maximizes the probability of discovering particle DM. Detailed calibrations and modeling of signal and background processes are required to make a convincing discovery. In the event that a candidate particle is found through different means, for example at a particle collider, the program described in this report is also essential to show that it is consistent with the actual cosmological DM. The US has a leading role in both direct and indirect detection dark matter experiments -- to maintain this leading role, it is imperative to continue funding major experiments and support a robust R\&D program., Comment: Submitted 30 pages, 11 figures, many references, Report of the CF1 Topical Group for Snowmass 2021

Published
2022

3. A Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS

Author

SuperCDMS Collaboration, Al-Bakry, Musaab, Alkhatib, Imran, Amaral, Dorian Praia do, Aralis, Taylor, Aramaki, Tsuguo, Arnquist, Isaac, Langroudy, Iman Ataee, Azadbakht, Elham, Banik, Samir, Bathurst, Corey, Bauer, Dan, Bezerra, Lucas, Bhattacharyya, Rik, Brink, Paul, Bunker, Ray, Cabrera, Blas, Calkins, Robert, Cameron, Robert, Cartaro, Concetta, Cerdeno, David, Chang, Yen-Yung, Chaudhuri, Mouli, Chen, Ran, Chott, Nicholas, Cooley, Jodi, Coombes, Harrison, Corbett, Jonathan, Cushman, Priscilla, De Brienne, François, Dharani, Sukeerthi, di Vacri, Maria Laura, Diamond, Miriam, Fascione, Eleanor, Figueroa, Enectali, Fink, Caleb, Fouts, Ken, Fritts, Matt, Gerbier, Gilles, Germond, Richard, Ghaith, Muad, Golwala, Sunil, Hall, Jeter, Hassan, Noah, Hines, Bruce, Hollister, Matt, Hong, Ziqing, Hoppe, Eric, Hsu, Lauren, Huber, Martin, Iyer, Vijay, Jardin, Daniel, Jastram, Andrew, Kashyap, Varchaswi, Kelsey, Michael, Kubik, Andrew, Kurinsky, Noah, Lawrence, Richard, Lee, Matthew, Li, Ashley, Liu, Jasmine, Liu, Yan, Loer, Ben, Lukens, Pat, MacFarlane, David, Mahapatra, Rupak, Mandic, Vuk, Mast, Nicholas, Mayer, Adam, Theenhausen, Hanno Meyer zu, Michaud, Émile, Michielin, Emanuele, Mirabolfathi, Nader, Mohanty, Bedangadas, Nagorny, Serge, Nelson, Jack, Neog, Himangshu, Novati, Valentina, Orrell, John, Osborne, McKay, Oser, Scott, Page, William, Partridge, Richard, Pedreros, David S., Podviianiuk, Ruslan, Ponce, Francisco, Poudel, Sudip, Pradeep, Aditi, Pyle, Matt, Rau, Wolfgang, Reid, Elliott, Ren, Tom, Reynolds, Tyler, Roberts, Amy, Robinson, Alan, Saab, Tarek, Sadoulet, Bernard, Saikia, Ishwita, Sander, Joel, Sattari, Ata, Schmidt, Benjamin, Schnee, Richard, Scorza, Silvia, Serfass, Bruno, Poudel, Sagar Sharma, Sincavage, Derek, Stanford, Chris, Street, Joseph, Sun, Huanbo, Thasrawala, Fatema, Toback, David, Underwood, Ryan, Verma, Shubham, Villano, Anthony, von Krosigk, Belina, Watkins, Samuel, Wen, Osmond, Williams, Zachary, Wilson, Matthew, Winchell, Joshua, Wu, Chih-pan, Wykoff, Kevin, Yellin, Steve, Young, Betty, Yu, To Chin, Zatschler, Birgit, Zatschler, Stefan, Zaytsev, Alexander, Zhang, Enze, Zheng, Lei, and Zuber, Summer

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

In this paper, we present a re-analysis of SuperCDMS data using a profile likelihood approach to search for sub-GeV dark matter particles (DM) through two inelastic scattering channels: bremsstrahlung radiation and the Migdal effect. By considering possible inelastic scattering channels, experimental sensitivity can be extended to DM masses that would otherwise be undetectable through the DM-nucleon elastic scattering channel, given the energy threshold of current experiments. We exclude DM masses down to $220~\textrm{MeV}/c^2$ at $2.7 \times 10^{-30}~\textrm{cm}^2$ via the bremsstrahlung channel. The Migdal channel search excludes DM masses down to $30~\textrm{MeV}/c^2$ at $5.0 \times 10^{-30}~\textrm{cm}^2$., Comment: This paper is being withdrawn due to an error in data selection during the analysis. Although incorrect, the limits are roughly representative of the sensitivity. The new corrected version of the result will be uploaded once ready

Published
2022

4. Dark Matter Direct Detection of Classical WIMPs

Author

Cooley, Jodi

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

One of the highest priorities in particle physics today is the identification of the constituents of dark matter. This manuscript is a supplement to pedagogical lectures given at the 2021 Les Houches Summer School on Dark Matter. The lectures cover topics related to the direct detection of WIMP dark matter, including the distribution of dark matter, nuclear scattering, backgrounds, planning and designing of experiments and a sampling of planned and ongoing experiments., Comment: Submitted to SciPost Physics Lecture Notes, Les Houches Summer School Series

Published
2021
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5. Evaluation and mitigation of trace $^{210}$Pb contamination on copper surfaces

Author

Bunker, Raymond, Aramaki, Tsuguo, Arnquist, Isaac, Calkins, Robert, Cooley, Jodi, Hoppe, Eric, Orrell, John, and Thommasson, Kimbrelle

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

Clean materials are required to construct and operate many low-background physics experiments. High-purity copper has found broad use because of its physical properties and availability. In this paper, we describe methods to assay and mitigate $^{210}$Pb contamination on copper surfaces, such as from exposure to environmental radon or coming from bulk impurities. We evaluated the efficacy of wet etching on commercial samples and observed that $^{210}$Po contamination from the copper bulk does not readily pass into solution. During the etch, the polonium appears to trap at the copper-etchant boundary, such that it is effectively concentrated at the copper surface. We observed a different behavior for $^{210}$Pb; high-sensitivity measurements of the alpha emissivity versus time indicate the lowest level of $^{210}$Pb contamination ever reported for a commercial copper surface: $0\pm12$ nBq/cm$^2$ (1$\sigma$). Additionally, we have demonstrated the effectiveness of mitigating trace $^{210}$Pb and $^{210}$Po surface backgrounds using custom, high-purity electroplating techniques. These approaches were evaluated utilizing assays performed with an XIA UltraLo-1800 alpha spectrometer., Comment: Published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume 967, 1 July 2020, 163870

Published
2020
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6. Energy Loss Due to Defect Formation from $^{206}$Pb Recoils in SuperCDMS Germanium Detectors

Author

Agnese, Robert, Aralis, Taylor, Aramaki, Tsuguo, Arnquist, Isaac, Azadbakht, Elham, Baker, William, Banik, Samir, Barker, D'Ann, Bauer, Dan, Binder, Thomas, Bowles, Michael, Brink, Paul, Bunker, Ray, Cabrera, Blas, Calkins, Robert, Cartaro, Concetta, Cerdeno, David, Chang, Yen-Yung, Cooley, Jodi, Cornell, Brett, Cushman, Priscilla, Di Stefano, Philippe, Doughty, Todd, Fascione, Eleanor, Figueroa, Tali, Fink, Caleb, Fritts, Matt, Gerbier, Gilles, Germond, Richard, Ghaith, Muad, Golwala, Sunil, Harris, Rusty, Hong, Ziqing, Hoppe, Eric, Hsu, Lauren, Huber, Martin, Iyer, Vijay, Jardin, Dan, Jena, Chitrasen, Kelsey, Michael, Kennedy, Allison, Kubik, Andrew, Kurinsky, Noah, Lawrence, Richard, Loer, Ben, Lopez-Asamar, Elias, Lukens, Pat, MacDonell, Danika, Mahapatra, Rupak, Mandic, Vuk, Mast, Nicholas, Miller, Eric, Mirabolfathi, Nader, Mohanty, Bedangadas, Morales, Jorge, Nelson, Jack, Orrell, John, Oser, Scott, Page, William, Partridge, Richard, Pepin, Mark, Ponce, Francisco, Poudel, Sudip, Pyle, Matt, Qiu, Hang, Rau, Wolfgang, Reisetter, Angela, Ren, Tom, Reynolds, Tyler, Roberts, Amy, Robinson, Alan, Rogers, Hannah, Saab, Tarek, Sadoulet, Bernard, Sander, Joel, Scarff, Andrew, Schnee, Richard, Scorza, Silvia, Senapati, Kartik, Serfass, Bruno, Speller, Danielle, Stein, Matthew, Street, Joseph, Tanaka, Hirohisa, Toback, David, Underwood, Ryan, Villano, Anthony, von Krosigk, Belina, Watkins, Samuel, Wilson, Jon, Wilson, Matthew, Winchell, Joshua, Wright, Dennis, Yellin, Steve, Young, Betty, Zhang, Xiaohe, and Zhao, Xuji

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Applied Physics
Abstract

The Super Cryogenic Dark Matter Search experiment (SuperCDMS) at the Soudan Underground Laboratory studied energy loss associated with Frenkel defect formation in germanium crystals at mK temperatures using in situ $^{210}$Pb sources. We examine the spectrum of $^{206}$Pb nuclear recoils near its expected 103 keV endpoint energy and determine an energy loss of $\left(6.08\pm0.18\right)$ %, which we attribute to defect formation. From this result and using TRIM simulations, we extract the first experimentally determined average displacement threshold energy of $\left(19.7^{+0.6}_{-0.5}\right)$ eV for germanium. This has implications for the analysis thresholds of future germanium-based dark matter searches., Comment: 4 Figures, Two data files, One data release description file

Published
2018
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7. Radon Daughter Plate-out Measurements at SNOLAB for Polyethylene and Copper

Author

Stein, Matthew, Bauer, Dan, Bunker, Ray, Calkins, Rob, Cooley, Jodi, Loer, Ben, and Scorza, Silvia

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Polyethylene and copper samples were exposed to the underground air at SNOLAB for approximately three months while several environmental factors were monitored. Predictions of the radon-daughter plate-out rate are compared to the resulting surface activities, obtained from high-sensitivity measurements of alpha emissivity using the XIA UltraLo-1800 spectrometer at SMU. From these measurements, we determine an average $^{210}$Pb plate-out rate of 249 and 423 atoms/day/cm$^{2}$ for polyethylene and copper, respectively, when exposed to radon activity of 135 Bq/m$^{3}$ at SNOLAB. A time-dependent model of alpha activity is discussed for these materials placed in similar environmental conditions., Comment: 7 pages, 7 figures

Published
2017
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8. Implementing an Honors Physics Add-On Course: The SMU Experience

Author

Cooley, Jodi, Godat, Eric, and Sekula, Stephen

Abstract

In this article, we outline how we implemented an honors-level add-on course to complement standard university-level introductory physics courses. We explain why it was necessary to do this. We then explain the strategies we have adopted for attracting students, engaging them, and assessing their performance. Our goal in creating this course was to provide a flexible format that would not discriminate based on experience and preparation, because such factors can be tied to sex, gender, social-economic status, and race. We also sought to empower students that are traditionally marginalized or underrepresented in large course settings by giving them a venue where they could work in a small, dynamic, and creative environment.

Published
2020
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9. Dark Sectors 2016 Workshop: Community Report

Author

Alexander, Jim, Battaglieri, Marco, Echenard, Bertrand, Essig, Rouven, Graham, Matthew, Izaguirre, Eder, Jaros, John, Krnjaic, Gordan, Mardon, Jeremy, Morrissey, David, Nelson, Tim, Perelstein, Maxim, Pyle, Matt, Ritz, Adam, Schuster, Philip, Shuve, Brian, Toro, Natalia, Van De Water, Richard G, Akerib, Daniel, An, Haipeng, Aniol, Konrad, Arnquist, Isaac J., Asner, David M., Back, Henning O., Baker, Keith, Baltzell, Nathan, Banerjee, Dipanwita, Batell, Brian, Bauer, Daniel, Beacham, James, Benesch, Jay, Bjorken, James, Blinov, Nikita, Boehm, Celine, Bondí, Mariangela, Bonivento, Walter, Bossi, Fabio, Brodsky, Stanley J., Budnik, Ran, Bueltmann, Stephen, Bukhari, Masroor H., Bunker, Raymond, Carpinelli, Massimo, Cartaro, Concetta, Cassel, David, Cavoto, Gianluca, Celentano, Andrea, Chaterjee, Animesh, Chaudhuri, Saptarshi, Chiodini, Gabriele, Cho, Hsiao-Mei Sherry, Church, Eric D., Cooke, D. A., Cooley, Jodi, Cooper, Robert, Corliss, Ross, Crivelli, Paolo, Curciarello, Francesca, D'Angelo, Annalisa, Davoudiasl, Hooman, De Napoli, Marzio, De Vita, Raffaella, Denig, Achim, deNiverville, Patrick, Deshpande, Abhay, Dharmapalan, Ranjan, Dobrescu, Bogdan, Donskov, Sergey, Dupre, Raphael, Estrada, Juan, Fegan, Stuart, Ferber, Torben, Field, Clive, Figueroa-Feliciano, Enectali, Filippi, Alessandra, Fornal, Bartosz, Freyberger, Arne, Friedland, Alexander, Galon, Iftach, Gardner, Susan, Girod, Francois-Xavier, Gninenko, Sergei, Golutvin, Andrey, Gori, Stefania, Grab, Christoph, Graziani, Enrico, Griffioen, Keith, Haas, Andrew, Harigaya, Keisuke, Hearty, Christopher, Hertel, Scott, Hewett, JoAnne, Hime, Andrew, Hitlin, David, Hochberg, Yonit, Holt, Roy J., Holtrop, Maurik, Hoppe, Eric W., Hossbach, Todd W., Hsu, Lauren, Ilten, Phil, Incandela, Joe, Inguglia, Gianluca, Irwin, Kent, Jaegle, Igal, Johnson, Robert P., Kahn, Yonatan, Kalicy, Grzegorz, Kang, Zhong-Bo, Khachatryan, Vardan, Kozhuharov, Venelin, Krasnikov, N. V., Kubarovsky, Valery, Kuflik, Eric, Kurinsky, Noah, Laha, Ranjan, Lanfranchi, Gaia, Li, Dale, Lin, Tongyan, Lisanti, Mariangela, Liu, Kun, Liu, Ming, Loer, Ben, Loomba, Dinesh, Lyubovitskij, Valery E., Manalaysay, Aaron, Mandaglio, Giuseppe, Mans, Jeremiah, Marciano, W. J., Markiewicz, Thomas, Marsicano, Luca, Maruyama, Takashi, Matveev, Victor A., McKeen, David, McKinnon, Bryan, McKinsey, Dan, Merkel, Harald, Mock, Jeremy, Monzani, Maria Elena, Moreno, Omar, Nantais, Corina, Paul, Sebouh, Peskin, Michael, Poliakov, Vladimir, Polosa, Antonio D, Pospelov, Maxim, Rachek, Igor, Radics, Balint, Raggi, Mauro, Randazzo, Nunzio, Ratcliff, Blair, Rizzo, Alessandro, Rizzo, Thomas, Robinson, Alan, Rubbia, Andre, Rubin, David, Rueter, Dylan, Saab, Tarek, Santopinto, Elena, Schnee, Richard, Shelton, Jessie, Simi, Gabriele, Simonyan, Ani, Sipala, Valeria, Slone, Oren, Smith, Elton, Snowden-Ifft, Daniel, Solt, Matthew, Sorensen, Peter, Soreq, Yotam, Spagnolo, Stefania, Spencer, James, Stepanyan, Stepan, Strube, Jan, Sullivan, Michael, Tadepalli, Arun S., Tait, Tim, Taiuti, Mauro, Tanedo, Philip, Tayloe, Rex, Thaler, Jesse, Tran, Nhan V., Tulin, Sean, Tully, Christopher G., Uemura, Sho, Ungaro, Maurizio, Valente, Paolo, Vance, Holly, Vavra, Jerry, Volansky, Tomer, von Krosigk, Belina, Whitbeck, Andrew, Williams, Mike, Wittich, Peter, Wojtsekhowski, Bogdan, Xue, Wei, Yoon, Jong Min, Yu, Hai-Bo, Yu, Jaehoon, Yu, Tien-Tien, Zhang, Yue, Zhao, Yue, Zhong, Yiming, and Zurek, Kathryn

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years., Comment: 66 pages, 15 figures, 3 tables. Workshop website and agenda: http://www-conf.slac.stanford.edu/darksectors2016/ https://indico.cern.ch/event/507783/ Editors: J. Alexander, M. Battaglieri, B. Echenard, R. Essig, M. Graham, E. Izaguirre, J. Jaros, G. Krnjaic, J. Mardon, D. Morrissey, T. Nelson, M. Perelstein, M. Pyle, A. Ritz, P. Schuster, B. Shuve, N. Toro, R. Van De Water

Published
2016

10. Results from the CDMS II Experiment

Author

Cooley, Jodi

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

I report recent results and the status of the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory in Minnesota, USA. A blind analysis of data taken by 30 detectors between October 2006 and July 2007 found zero events consistent with WIMPs elastically scattering in our Ge detectors. This resulted in an upper limit on the spin-independent, WIMP-nucleon cross section of 6.6 x 10^-44 cm^2 (4.6 x 10^-44 cm^2 when combined with our previous results) at the 90% C.L. for a WIMP of mass 60 GeV/c^2. In March 2009 data taking with CDMS II stopped in order to install the first of 5 SuperTowers of detectors for the SuperCDMS Soudan project. Analysis of data taken between August 2007 and March 2009 is ongoing., Comment: 5 pages, 4 figures, to appear in the proceedings of the TAUP09 conference (Rome, July 1st-5th 2009)

Published
2009
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11. Status and Perspectives of Dark Matter Searches

Author

Cooley, Jodi

Subjects
Astrophysics
Abstract

In the last year many collaborations searching for the dark matter constituent have published results from their experiments. Here I give a review of direct detection searches reported by the DAMA, KIMS, CDMS-II, EDELWEISS-I, CRESST-II and ZEPLIN-I collaborations. I also outline the future plans of each collaboration as well as the XENON10 collaboration., Comment: 14 pages, 7 figures, to appear in proceedings from "Les Rencontres de Physique de la Vallee d'Aoste", March 5-11 2006, La Thuile (AO), Italy

Published
2006

13. Basic Research Needs for High Energy Physics Detector Research & Development: Report of the Office of Science Workshop on Basic Research Needs for HEP Detector Research and Development: December 11-14, 2019

Author

Fleming, Bonnie, primary, Shipsey, Ian, additional, Demarteau, Marcel, additional, Fast, James, additional, Golwala, Sunil, additional, Kim, Young-Kee, additional, Seiden, Abraham, additional, Hirschauer, James, additional, Sciolla, Gabriella, additional, Palamara, Ornella, additional, Scholberg, Kate, additional, Cooley, Jodi, additional, McKinsey, Dan, additional, Chang, Clarence, additional, Flaugher, Brenna, additional, Demers, Sarah, additional, Pepe-Altarelli, Monica, additional, Lanni, Francesco, additional, Rusack, Roger, additional, Guenette, Roxanne, additional, Monroe, Jocelyn, additional, Winslow, Lindley, additional, Krizan, Peter, additional, Geraci, Andrew, additional, Irwin, Kent, additional, Carini, Gabriella, additional, Newcomer, Mitch, additional, Artuso, Marina, additional, Haber, Carl, additional, Acosta, Darin, additional, Bose, Tulika, additional, Begel, Michael, additional, Narain, Meenakshi, additional, Dwyer, Daniel, additional, Connolly, Amy, additional, Sonnenschein, Andrew, additional, Henning, Reyco, additional, Dawson, Kyle, additional, Newburgh, Laura, additional, Reece, Matthew, additional, Serra, Nicola, additional, Akchurin, Nural, additional, Eno, Sarah, additional, Rumerio, Paolo, additional, Zhu, Renyuan, additional, Raaf, Jennifer, additional, Pocar, Andrea, additional, Asaadi, Jonathan, additional, Lippincott, Hugh, additional, Giovanetti, Graham, additional, Lita, Adriana, additional, Sefkow, Felix, additional, Campbell, Gretchen, additional, Sushkov, Alexander, additional, Walsworth, Ronald, additional, Grassellino, Anna, additional, Dragone, Angelo, additional, Garcia-Sciveres, Maurice, additional, Shaw, Terri, additional, Thom-Levy, Julia, additional, Tricoli, Alessandro, additional, Merkel, Petra, additional, Ketchum, Wesley, additional, Zhang, Jinlong, additional, O'Connor, Paul, additional, Karagiorgi, Georgia, additional, Ashton, Christie, additional, Chaterjee, Lali, additional, Lee, Peter, additional, Hornback, Donald, additional, Marsiske, Helmut, additional, Shinn, Michelle, additional, Byrum, Karen, additional, Crawford, Glen, additional, Lessner, Elaine, additional, Nevels, Donna, additional, Rai, Gulshan, additional, Turner, Kathy, additional, and Ruchti, Randall, additional

Published
2019
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14. EXCESS workshop: Descriptions of rising low-energy spectra

Author

Adari, Prakruth, primary, Aguilar-Arevalo, Alexis A., additional, Amidei, Dante, additional, Angloher, G., additional, Armengaud, Eric, additional, Augier, C., additional, Balogh, Levente, additional, Banik, S., additional, Baxter, David, additional, Beaufort, C., additional, Beaulieu, G., additional, Belov, V., additional, Ben Gal, Y., additional, Benato, Giovanni, additional, Benoît, Alain, additional, Bento, Antonio, additional, Bergé, Laurent, additional, Bertolini, Andrea, additional, Bhattacharyya, R., additional, Billard, J., additional, Bloch, Itay M., additional, Botti, A., additional, Breier, Robert, additional, Bres, G., additional, Bret, J-.L., additional, Broniatowski, A., additional, Brossard, Alexis, additional, Bucci, Carlo, additional, Bunker, Raymond, additional, Cababie, M., additional, Calvo, M., additional, Camus, P., additional, Cancelo, G., additional, Canonica, Lucia, additional, Cappella, Fabio, additional, Cardani, Laura, additional, Caron, Jean-François, additional, Casali, N., additional, del Castello, G., additional, Cazes, Aurélie, additional, Cerulli, Riccardo, additional, Cervantes Vergara, B.A., additional, Chaize, D., additional, Chapellier, M., additional, Chaplinsky, L., additional, Charlieux, F., additional, Chaudhuri, M., additional, Chavarria, Alvaro E., additional, Chemin, G., additional, Chen, Ran, additional, Chen, Hao, additional, Chierchie, F., additional, Colantoni, I., additional, Colas, J., additional, Cooley, Jodi, additional, Coquillat, Jean-Marie, additional, Corcoran, Emily, additional, Crawford, S., additional, Crisler, Michael, additional, Cruciani, Angelo, additional, Cushman, Priscilla, additional, D'Addabbo, Antonio, additional, D'Olivo, Juan Carlos, additional, Dastgheibi-Fard, A., additional, De Jésus, Maria, additional, Deng, Y., additional, Dent, James, additional, Depaoli, Eliana, additional, Dering, Koby, additional, Dharani, Sukeerthi, additional, Di Lorenzo, S., additional, Drlica-Wagner, Alex, additional, Dumoulin, Louis, additional, Durnford, Daniel, additional, Dutta, Bhaskar, additional, Einfalt, L., additional, Erb, Anna, additional, Erhart, A., additional, Essig, Rouven, additional, Estrada, Juan, additional, Etzion, Erez, additional, Exshaw, O., additional, Favela-Perez, F., additional, von Feilitzsch, F., additional, Fernandez Moroni, Guillermo, additional, Ferreiro Iachellini, Nahuel, additional, Ferriol, S., additional, Fichtinger, S., additional, Figueroa-Feliciano, Enectalí, additional, Filippini, J.-B., additional, Filosofov, Dmitry, additional, Formaggio, Joseph A., additional, Friedl, Markus, additional, Fuard, S., additional, Fuchs, Dominik, additional, Fuss, Alexander, additional, Gaïor, R., additional, Garai, Abhijit, additional, Garrah, Carter, additional, Gascon, J., additional, Gerbier, Gilles, additional, Ghaith, Muad, additional, Ghete, V. M., additional, Gift, Daniel, additional, Giomataris, I., additional, Giroux, Guillaume, additional, Giuliani, A., additional, Gorel, Pierre, additional, Gorla, Paolo, additional, Goupy, C., additional, Goupy, J., additional, Goy, C., additional, Gros, M., additional, Gros, Philippe, additional, Guardincerri, Yann, additional, Guerin, C., additional, Guidi, Vincenzo, additional, Guillaudin, O., additional, Gupta, S., additional, Guy, E., additional, Harrington, Patrick, additional, Hauff, D., additional, Heine, S. T., additional, Hertel, Scott A., additional, Holland, Stephen, additional, Hong, Z., additional, Hoppe, Eric W., additional, Hossbach, Todd W., additional, Ianigro, J.-C., additional, Iyer, Vivek, additional, Jastram, Andrew, additional, Ješkovský, Miroslav, additional, Jin, Y., additional, Jochum, Josef, additional, Johnston, J. P., additional, Juillard, A., additional, Karaivanov, Dimitar, additional, Kashyap, V., additional, Katsioulas, Ioannis, additional, Kazarcev, S., additional, Kaznacheeva, Margarita, additional, Kelly, Fiona, additional, Kilminster, B., additional, Kinast, Angelina, additional, Klinkenberg, L., additional, Kluck, Holger, additional, Knights, Patrick, additional, Korn, Yaron, additional, Kraus, Hans, additional, von Krosigk, Belina, additional, Kubik, Andrew, additional, Kurinsky, Noah, additional, Lamblin, Jacob, additional, Langenkämper, Alexander, additional, Langrock, S., additional, Lasserre, Thierry, additional, Lattaud, H., additional, Lautridou, P., additional, Lawson, Ian, additional, Lee, S.-J., additional, Lee, M., additional, Letessier-Selvon, Antoine, additional, Lhuillier, D., additional, Li, M., additional, Lin, Y.-T., additional, Lubashevskiy, Alexey, additional, Mahaparta, Rupak, additional, Maludze, Sandro, additional, Mancuso, Michele, additional, Manthos, Ioannis, additional, Marini, Laura, additional, Marnieros, S., additional, Martin, Ryan D., additional, Matalon, Ariel, additional, Matthews, J., additional, Mauri, B., additional, Mayer, D. W., additional, Mazzolari, Andrea, additional, Mazzucato, E., additional, Meyer zu Theenhausen, Hanno, additional, Michielin, E., additional, Minet, J., additional, Mirabolfathi, Nader, additional, v. Mirbach, K., additional, Misiak, Dimitri, additional, Mitra, P., additional, Mocellin, J.-L., additional, Mohanty, Bedangadas, additional, Mokina, Valentyna, additional, Mols, J.-P., additional, Monfardini, Alessandro, additional, Mounier, F., additional, Munagavalasa, Sravan, additional, Muraz, Jean-François, additional, Navick, X.-F., additional, Neep, Thomas, additional, Neog, Himangshu, additional, Neyrial, H., additional, Nikolopoulos, Kostas, additional, Nilima, Athoy, additional, Nones, C., additional, Novati, Valentina, additional, O'Brien, Paul, additional, Oberauer, L., additional, Olivieri, E., additional, Olmi, Alessandro, additional, Onillon, A., additional, Oriol, C., additional, Orly, A., additional, Orrell, John L., additional, Ortmann, T., additional, Overman, C. T., additional, Pagliarone, Carmine Elvezio, additional, Palušová, Veronika, additional, Pari, P., additional, Patel, P. K., additional, Pattavina, Luca, additional, Petricca, Federica, additional, Piers, Alexander, additional, Pinckney, Harold D., additional, Piro, Marie-Cécile, additional, Platt, Mark, additional, Poda, D., additional, Ponomarev, Dmitry, additional, Potzel, Walter, additional, Povinec, Pavel, additional, Pröbst, F., additional, Privitera, P., additional, Pucci, F., additional, Ramanathan, K., additional, Real, J.-S., additional, Redon, T., additional, Reindl, Florian, additional, Ren, R., additional, Robert, Adeline, additional, Da Rocha, Julia, additional, Rodrigues, D., additional, Rogly, R., additional, Rothe, Johannes, additional, Rowe, Noah, additional, Rozov, Sergey, additional, Rozova, I., additional, Saab, Tarek, additional, Saffold, Nathan, additional, Salagnac, T., additional, Sander, Joel, additional, Sanglard, Veronique, additional, Santos, D., additional, Sarkis, Youssef, additional, Savu, V., additional, Savvidis, G., additional, Savvidis, I., additional, Schönert, S., additional, Schäffner, Karoline, additional, Schermer, Nicole, additional, Schieck, Jochen, additional, Schmidt, Benjamin, additional, Schmiedmayer, D., additional, Schwertner, C., additional, Scola, L., additional, Settimo, Mariangela, additional, Shevchik, Ye., additional, Sibille, Valérian, additional, Sidelnik, Ivan, additional, Singal, Aman, additional, Smida, Radomir, additional, Sofo Haro, Miguel, additional, Soldner, Torsten, additional, Stachurska, Juliana, additional, Stahlberg, Martin, additional, Stefanazzi, Leandro, additional, Stodolsky, Leo, additional, Strandhagen, Christian, additional, Strauss, R., additional, Stutz, A., additional, Thomas, R., additional, Thompson, A., additional, Tiffenberg, Javier, additional, Tomei, Claudia, additional, Traina, M., additional, Uemura, Sho, additional, Usherov, I., additional, Vagneron, L., additional, Van De Pontseele, Wouter, additional, Vázquez de Sola Fernández, Francisco Andrés, additional, Vidal, M., additional, Vignati, M., additional, Virto, A. L., additional, Vivier, M., additional, Volansky, Tomer, additional, Wagner, V., additional, Wagner, Felix, additional, Walker, Joel, additional, Ward, R., additional, Watkins, Samuel L., additional, Wex, A., additional, Willers, Michael, additional, Wilson, M. J., additional, Winslow, Lindley, additional, Yakushev, Evgeny, additional, Yu, T.-T., additional, Zampaolo, M., additional, Zaytsev, Alexander, additional, Zema, Vanessa, additional, Zinatulina, Daniya, additional, and Zolotarova, A., additional

Published
2022
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17. EXCESS workshop: Descriptions of rising low-energy spectra

Author

Fuss, A., Kaznacheeva, M., Reindl, F., Wagner, F., Adari, Prakruth, Aguilar-Arevalo, Alexis A., Amidei, Dante, Angloher, G., Armengaud, Eric, Augier, C., Balogh, Levente, Banik, S., Baxter, David, Beaufort, C., Beaulieu, G., Belov, V., Gal, Y. Ben, Benato, Giovanni, Benoît, Alain, Bento, Antonio, Bergé, Laurent, Bertolini, Andrea, Bhattacharyya, R., Billard, J., Bloch, Itay M., Botti, A., Breier, Robert, Bres, G., Bret, J-.L., Broniatowski, A., Brossard, Alexis, Bucci, Carlo, Bunker, Raymond, Cababie, M., Calvo, M., Camus, P., Cancelo, G., Canonica, Lucia, Cappella, Fabio, Cardani, Laura, Caron, Jean-François, Casali, N., del Castello, G., Cazes, Aurélie, Cerulli, Riccardo, Vergara, B.A. Cervantes, Chaize, D., Chapellier, M., Chaplinsky, L., Charlieux, F., Chaudhuri, M., Chavarria, Alvaro E., Chemin, G., Chen, Ran, Chen, Hao, Chierchie, F., Colantoni, I., Colas, J., Cooley, Jodi, Coquillat, Jean-Marie, Corcoran, Emily, Crawford, S., Crisler, Michael, Cruciani, Angelo, Cushman, Priscilla, d'Addabbo, Antonio, d'Olivo, Juan Carlos, Dastgheibi-Fard, A., Jésus, Maria De, Deng, Y., Dent, James, Depaoli, Eliana, Dering, Koby, Dharani, Sukeerthi, Di Lorenzo, S., Drlica-Wagner, Alex, Dumoulin, Louis, Durnford, Daniel, Dutta, Bhaskar, Einfalt, L., Erb, Anna, Erhart, A., Essig, Rouven, Estrada, Juan, Etzion, Erez, Exshaw, O., Favela-Perez, F., von Feilitzsch, F., Moroni, Guillermo Fernandez, Iachellini, Nahuel Ferreiro, Ferriol, S., Fichtinger, S., Figueroa-Feliciano, Enectalí, Filippini, J.-B., Filosofov, Dmitry, Formaggio, Joseph A., Friedl, Markus, Fuard, S., Fuchs, Dominik, Gaïor, R., Garai, Abhijit, Garrah, Carter, Gascon, J., Gerbier, Gilles, Ghaith, Muad, Ghete, V.M., Gift, Daniel, Giomataris, I., Giroux, Guillaume, Giuliani, A., Gorel, Pierre, Gorla, Paolo, Goupy, C., Goupy, J., Goy, C., Gros, M., Gros, Philippe, Guardincerri, Yann, Guerin, C., Guidi, Vincenzo, Guillaudin, O., Gupta, S., Guy, E., Harrington, Patrick, Hauff, D., Heine, S.T., Hertel, Scott A., Holland, Stephen, Hong, Z., Hoppe, Eric W., Hossbach, Todd W., Ianigro, J.-C., Iyer, Vivek, Jastram, Andrew, Ješkovský, Miroslav, Jin, Y., Jochum, Josef, Johnston, J.P., Juillard, A., Karaivanov, Dimitar, Kashyap, V., Katsioulas, Ioannis, Kazarcev, S., Kelly, Fiona, Kilminster, B., Kinast, Angelina, Klinkenberg, L., Kluck, Holger, Knights, Patrick, Korn, Yaron, Kraus, Hans, von Krosigk, Belina, Kubik, Andrew, Kurinsky, N.A., Lamblin, Jacob, Langenkämper, Alexander, Langrock, S., Lasserre, Thierry, Lattaud, H., Lautridou, P., Lawson, Ian, Lee, S.J., Lee, M., Letessier-Selvon, Antoine, Lhuillier, D., Li, M., Lin, Y.-T., Lubashevskiy, Alexey, Mahaparta, Rupak, Mahapatra, R., Maludze, Sandro, Mancuso, Michele, Manthos, Ioannis, Marini, Laura, Marnieros, S., Martin, Ryan D., Matalon, Ariel, Matthews, J., Mauri, B., Mayer, D.W., Mazzolari, Andrea, Mazzucato, E., Theenhausen, Hanno Meyer Zu, Michielin, E., Minet, J., Mirabolfathi, Nader, Mirbach, K. V., Misiak, Dimitri, Mitra, P., Mocellin, J-.L., Mohanty, Bedangadas, Mokina, Valentyna, Mols, J.-P., Monfardini, Alessandro, Mounier, F., Munagavalasa, Sravan, Muraz, Jean-François, Navick, X.-F., Neep, Thomas, Neog, Himangshu, Neyrial, H., Nikolopoulos, Kostas, Nilima, Athoy, Nones, C., Novati, Valentina, O'Brien, Paul, Oberauer, L., Olivieri, E., Olmi, Alessandro, Olmi, M., Onillon, A., Oriol, C., Orly, A., Orrell, John L., Ortmann, T., Overman, C.T., Pagliarone, Carmine Elvezio, Palušová, Veronika, Pari, P., Patel, P.K., Pattavina, Luca, Petricca, Federica, Piers, Alexander, Pinckney, Harold D., Piro, Marie-Cécile, Platt, Mark, Poda, D., Ponomarev, Dmitry, Potzel, Walter, Povinec, Pavel, Pröbst, F., Privitera, P., Pucci, F., Ramanathan, K., Real, J.-S., Redon, T., Ren, R., Robert, Adeline, Rocha, Julia Da, Rodrigues, D., Rogly, R., Rothe, Johannes, Rowe, Noah, Rozov, Sergey, Rozova, I., Saab, Tarek, Saffold, Nathan, Salagnac, T., Sander, Joel, Sanglard, Veronique, Santos, D., Sarkis, Youssef, Savu, V., Savvidis, G., Savvidis, I., Schönert, S., Schäffner, Karoline, Schermer, Nicole, Schieck, Jochen, Schmidt, Benjamin, Schmiedmayer, D., Schwertner, C., Scola, L., Settimo, Mariangela, Shevchik, Ye., Sibille, Valérian, Sidelnik, Ivan, Singal, Aman, Smida, Radomir, Haro, Miguel Sofo, Soldner, Torsten, Stachurska, Juliana, Stahlberg, Martin, Stefanazzi, Leandro, Stodolsky, Leo, Strandhagen, Christian, Strauss, R., Stutz, A., Thomas, R., Thompson, A., Tiffenberg, Javier, Tomei, Claudia, Traina, M., Uemura, Sho, Usherov, I., Vagneron, L., Pontseele, Wouter van De, de Sola Fernández, Francisco Andrés Vázquez, Vidal, M., Vignati, M., Virto, A.L., Vivier, M., Volansky, Tomer, Wagner, V., Walker, Joel, Ward, R., Watkins, Samuel L., Wex, A., Willers, Michael, Wilson, M.J., Winslow, Lindley, Yakushev, Evgeny, Yu, T.-T., Zampaolo, M., Zaytsev, Alexander, Zema, Vanessa, Zinatulina, Daniya, Zolotarova, A., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), Cryogénie (NEEL - Cryo), Institut Laue-Langevin (ILL), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), and Institut Rayonnement Matière de Saclay (IRAMIS)

Subjects
CDMS, Physics - Instrumentation and Detectors, background, collective, energy spectrum, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), DAMIC, sensitivity, dark matter, EDELWEISS, CRESST, CONNIE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the significant impact of this excess on the dark matter or neutrino sensitivity of these experiments, a collective effort has been started to share the knowledge about the individual observations. For this, the EXCESS Workshop was initiated. In its first iteration in June 2021, ten rare event search collaborations contributed to this initiative via talks and discussions. The contributing collaborations were CONNIE, CRESST, DAMIC, EDELWEISS, MINER, NEWS-G, NUCLEUS, RICOCHET, SENSEI and SuperCDMS. They presented data about their observed energy spectra and known backgrounds together with details about the respective measurements. In this paper, we summarize the presented information and give a comprehensive overview of the similarities and differences between the distinct measurements. The provided data is furthermore publicly available on the workshop's data repository together with a plotting tool for visualization., 44 pages, 20 figures; Editors: A. Fuss, M. Kaznacheeva, F. Reindl, F. Wagner; updated copyright statements and funding information

Published
2021

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